Hearing Tan Zhenhua's answer, LV Guangjie and Ma Fengshan looked at each other. Ma Fengshan asked, "Zhenhua, where did you start? We didn't even set a price for Yunshi..."

Tan Zhenhua interrupted Ma Fengshan and said, "chief engineer Ma, I know you won't feel comfortable talking about these, but I still want to talk to you, because your ideas and mine are different from the starting point."

"How is it different?"

"If I remember correctly, the reason why I assigned the development task of the" 708 "project in that year actually has a very clear purpose, right?"

Ma Fengshan nodded. It's no secret. At the beginning of the "Yun 10" project, Zhou Shoufu was able to take his own country's airliner when he visited foreign countries. The destination was Albany, the "bright light of Europe", so all the technical parameters of the aircraft were designed according to this index at the beginning.

"So when you developed this aircraft, you didn't consider whether it was suitable for commercial use, did you?" Tan Zhenhua said impolitely.

LV Guangjie couldn't help retorting: "Zhenhua, although you're right, this airliner was indeed designed according to the indicators of a clear task, but it can't be said that civil aviation can't be used?"

Tan Zhenhua replied, "Secretary Lu, don't get excited. Listen to me first."

"In fact, as I said just now, I will give priority to the economy."

"Let's put it this way, the current international aviation market is roughly divided into short haul, medium and short haul and intercontinental routes from the perspective of route distribution. In these three route distributions, short haul is generally connected between large and medium-sized hub cities and small and medium-sized cities, so the passenger flow is not large, and generally consists of the so-called" regional airliners " For transportation, this kind of aircraft has a small body and usually carries 50-80 passengers. The engine is generally double engine, turbofan or turboprop, and even piston propeller. For example, the "Yun 7" we just visited actually belongs to this kind. "

"The second type of medium and short-range routes are generally used to connect large and medium-sized cities within the continent. The distance between these cities is generally between hundreds and 3000 or 4000 kilometers. In fact, this kind of route has the largest market and needs the largest number of aircraft. When purchasing aircraft for this kind of route, airlines need to consider not only the number of passengers, but also the flight density of the flight Degrees, so you usually choose a plane with 100 to 150 seats. "

Ma Fengshan interrupted, "our" Yunshi "can also fly such a route?"

Tan Zhenhua replied, "if I were the boss of the airline, I wouldn't buy Yunshi."

"Why?"

"Because you use two more engines than others, and the price of the engine is very expensive. It's not only expensive to buy, but also more expensive to maintain and use!"

Ma Fengshan suddenly became silent. He has been engaged in civil aviation for more than ten years. Of course, he knows the international development situation like the back of his hand. Tan Zhenhua is right. In terms of the purchase cost of passenger aircraft alone, the engine part of an aircraft basically accounts for 20% to 30% of the cost of the whole aircraft!

Not to mention, the engine is the part with the largest workload and consumption cost in the daily maintenance of the passenger plane.

Therefore, judging from the recent trend of purchasing passenger aircraft by several major airlines, the medium and short-range passenger aircraft have almost completely eliminated the four engine model, the three engine model has gradually been marginalized, and the two engine model has become popular. Therefore, the medium and short-range 100 seat passenger aircraft represented by "Boeing 737-200" and "McDonnell Douglas DC-9" can be sold better and better.

This should also be an important reason why the child in front chose "BAC" instead of "Trident"?

Tan Zhenhua has not stopped his analysis: "the last one is intercontinental flight. The responsibility of the aircraft flying is to connect the transportation hub cities between continents. This was originally the main function that the" Yun 10 "should undertake. However, we can see what kind of aircraft are flying intercontinental routes in the world. President Ma is most familiar to you. What do you say?"

Ma Fengshan blurted out without thinking: "the main ones should be" Boeing 747 "," McDonnell Douglas DC-10 "and" Airbus A300 ".

Tan Zhenhua said with a smile: "chief engineer Ma is right. You see," Airbus A300 "is the first two engine intercontinental aircraft. Its passenger capacity has been close to 300, while" McDonnell Douglas DC-10 "is a three engine aircraft, its passenger capacity has exceeded 300, and the four engine" Boeing 747 " The number of passengers has reached more than 400. What does this mean? It shows that in the eyes of airlines operating intercontinental routes, the passenger capacity of an intercontinental aircraft is a very important indicator. Of course, in fact, it is true. Therefore, let's "carry ten" In the current situation, the passenger capacity of four engines can't even reach 200 people. Can you tell me which airline can want it? "

LV Guangjie said unconvinced, "that's not necessarily. Aren't we still operating" Boeing 707 "in Huaxia? I heard we have to buy again..."

Tan Zhenhua said impolitely, "that's because some people in China can't settle accounts when they buy things!"

LV Guangjie choked on what he said and opened his mouth, but he found that he couldn't say anything. He thought to himself, this general manager Tan is really bold. He dares to say such words casually. If it's a few years in the morning... However, I'm afraid it's because he has such courage that he can break into this wealth?

However, why do you think what he said is really reasonable?

After listening to tan Zhenhua's words, Ma Fengshan thought carefully for a long time before sighing: "Zhenhua, this is the first time I've heard of your view today, but the more I think about it, the more I think it makes sense. Your starting point is to build the aircraft that airlines really need, which is completely different from our original starting point. I guess this is the main reason why you can continue to succeed in business?"

Tan Zhenhua said with a smile: "Mr. Ma, in fact, don't be discouraged. In fact, whether it's scientific research or business, you need to constantly try and make mistakes. It's also a good thing that you have made all the mistakes. It shows that the rest must be the right way. You're on the" Yunshi " The ten years spent on the will not be wasted. As I said just now, we in China must need a four engine intercontinental plane. However, it will be much larger than the current "Yun 10". If the current "Yun 10" is narrowed down a little and replaced with two engines, it may not be able to make a very good medium and short-range airliner. "

"Zhenhua, do you mean..."

"Don't worry, Mr. Ma. You have to eat your meal one by one and walk step by step. We can do the" BAC "thing first, and then think about others. As I said, in doing business, he must give priority to economy. Let's put this" BAC "first If it is made and the localization rate is increased, I will sell one hundred and eighty of them, so that we can develop the next generation of aircraft in a down-to-earth manner? "

Ma Fengshan looked forward and said, "Zhenhua, the more you say, the more I feel, but I want to remind you of one thing. Whether it's a four engine large intercontinental plane or a double engine 100 seat medium and short-range airliner, we don't have a matching engine in China. Don't mention the" turbofan 8 ". Even I don't dare to use it. In fact, this is also a place I was very distressed at the beginning..."

Tan Zhenhua smiled unfathomably and said, "engine, wait, he will come in a minute!"